String

Yeah, and the thinking here eventually leads us to things like how C++ defines lifetime and all that kind of stuff.

And indeed, things like resize and overwrite for string, which I don't think exists for vector, which might be another piece of the puzzle.

It does not, yeah.

But, you know, so the other thing is that Stepanovian regularity is defined as having the special member functions basically, being copyable, having equality, in fact also having comparison.